Detection of Impurities in Gas Streams
A method of measuring the level of an impurity in a gas comprises providing a gas detection tube having a internal volume containing a reagent which can react with said impurity to produce a compound capable of producing a color change in said tube such that the extent of the color change is proport...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A method of measuring the level of an impurity in a gas comprises providing a gas detection tube having a internal volume containing a reagent which can react with said impurity to produce a compound capable of producing a color change in said tube such that the extent of the color change is proportional to the concentration of the impurity in said gas. A volume of the gas at least 1x103 times the test volume of the gas detection tube is passed through the tube and the extent of the color change of the detector element is measured. |
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